//
//  TimeChangeTool.m
//  Shengzhuli
//
//  Created by subook on 2017/8/22.
//  Copyright © 2017年 kamangkeji. All rights reserved.
//

#import "TimeChangeTool.h"

@implementation TimeChangeTool
// 后台给的格式为yyyy-MM-dd HH:mm:ss.SSS
+ (NSString *) compareCurrentTime:(NSString *)str
{
    //把字符串转为NSdate
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSDate *timeDate = [dateFormatter dateFromString:str];
    NSDate *currentDate = [NSDate date];
    
    //得到两个时间差
    NSTimeInterval timeInterval = [currentDate timeIntervalSinceDate:timeDate];
    long temp = 0;
    NSString *result;
    if (timeInterval/60 < 1)
    {
        result = [NSString stringWithFormat:@"刚刚发布"];
    }
    else if((temp = timeInterval/60) <60){
        result = [NSString stringWithFormat:@"%ld分钟前发布",temp];
    }
    else if((temp = temp/60) <24){
        result = [NSString stringWithFormat:@"%ld小时前发布",temp];
    }
    else if((temp = temp/24) <30){
        result = [NSString stringWithFormat:@"%ld天前发布",temp];
    }
    else if((temp = temp/30) <12){
        result = [NSString stringWithFormat:@"%ld月前发布",temp];
    } else{
        temp = temp/12;
        result = [NSString stringWithFormat:@"%ld年前发布",temp];
    }
    return  result;
}
// 后台给的格式为 纯数字1352170595000(13位)
+ (NSString *)updateTimeForRow:(NSString *)str {
    // 获取当前时时间戳 1466386762.345715 十位整数 6位小数
    NSTimeInterval currentTime = [[NSDate date] timeIntervalSince1970];
    // 创建歌曲时间戳(后台返回的时间 一般是13位数字)
    NSTimeInterval createTime =[str floatValue]/1000;
    // 时间差
    NSTimeInterval time = currentTime - createTime;
    
    //秒转分钟
    NSInteger small = time / 60;
    if (small == 0) {
        return [NSString stringWithFormat:@"刚刚发布"];
    }
    
    
    if (small < 60) {
        return [NSString stringWithFormat:@"%ld分钟前发布",small];
    }
    
    // 秒转小时
    NSInteger hours = time/3600;
    if (hours<24) {
        return [NSString stringWithFormat:@"%ld小时前发布",hours];
    }
    //秒转天数
    NSInteger days = time/3600/24;
    if (days < 30) {
        return [NSString stringWithFormat:@"%ld天前发布",days];
    }
    //秒转月
    NSInteger months = time/3600/24/30;
    if (months < 12) {
        return [NSString stringWithFormat:@"%ld月前发布",months];
    }
    //秒转年
    NSInteger years = time/3600/24/30/12;
    return [NSString stringWithFormat:@"%ld年前发布",years];
}
@end
